Close-up of a Class A GFCI outlet with test and reset buttons

VFD Tripping GFCI Breaker: Lenze Drive Solutions & Fixes

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Estimated reading time: 12 minutes Have you ever dealt with…
Smoke rising from a failed VFD with burn marks on internal components

VFD Hardware Failure: Diagnosis and Replacement Guide

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Estimated reading time: 9 minutes When a variable frequency…
VFD screen indicating a Ground Fault alarm

VFD Ground Fault & Short-Circuit Trips: Causes & Solutions

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6 Comments
Estimated reading time: 11 minutes Ground fault and short-circuit…
Technician verifying VFD parameter settings for motor current and overload

VFD Overcurrent Fault & Motor Overload – Causes & Fixes

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14 Comments
Estimated reading time: 19 minutes Variable Frequency Drives…
Simplified DC-bus diagram showing rectifier, capacitors, and inverter stages of a VFD

VFD Overvoltage Faults During Deceleration: Causes & Fixes

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11 Comments
Estimated reading time: 13 minutes Variable Frequency Drives…
“Close-up of a large industrial cooling fan—proper airflow prevents VFD overheating”

VFD Overheating & Cooling System Failures: Causes and Fixes

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12 Comments
Estimated reading time: 13 minutes Variable Frequency Drives…

Invertek OptiDrive E3 Training Lesson 4: Basic Start Stop Switch Control Wiring & Programming – VFDs

Invertek Optidrive E3 Training Lesson 3: Basic Speed Potentiometer Wiring & Setup – VFDs

Invertek OptiDrive E3 Training Lesson 2: Basic Parameter Programming & Startup – VFDs

Invertek OptiDrive E3 Training Lesson 1: Basic Input Voltage & Motor Wiring – VFDs

Sullair Drive Repair

Sullair drive repair has over the past decade become a cost-efficient…

Invertek Optidrive E3 Training Lesson 2: Basic Parameter Programming & Startup – VFDs